mirror of
https://github.com/AsahiLinux/u-boot
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323d1f9d5b
Before this commit, the Kconfig menu in mach-uniphier only allowed us
to choose one SoC to be compiled. Each SoC has its own defconfig file
for the build-test coverage. Consequently, some defconfig files are
duplicated with only the difference in CONFIG_DEFAULT_DEVICE_TREE and
CONFIG_{SOC_NAME}=y.
Now, most of board-specific parameters have been moved to device trees,
so it makes sense to include init code of multiple SoCs into a single
image as long as the SoCs have similar architecture. In fact, some
SoCs of UniPhier family are very similar:
- PH1-LD4 and PH1-sLD8
- PH1-LD6b and ProXstream2 (will be added in the upcoming commit)
This commit will be helpful to merge some defconfig files for better
maintainability.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
175 lines
5.6 KiB
C
175 lines
5.6 KiB
C
/*
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* Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include <linux/sizes.h>
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#include <mach/init.h>
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#include <mach/umc-regs.h>
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#include <mach/ddrphy-regs.h>
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static void umc_start_ssif(void __iomem *ssif_base)
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{
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writel(0x00000000, ssif_base + 0x0000b004);
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writel(0xffffffff, ssif_base + 0x0000c004);
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writel(0x000fffcf, ssif_base + 0x0000c008);
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writel(0x00000001, ssif_base + 0x0000b000);
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writel(0x00000001, ssif_base + 0x0000c000);
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writel(0x03010101, ssif_base + UMC_MDMCHSEL);
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writel(0x03010100, ssif_base + UMC_DMDCHSEL);
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writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_FETCH);
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writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMQUE0);
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writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMWC0);
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writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMRC0);
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writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMQUE1);
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writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMWC1);
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writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_COMRC1);
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writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_WC);
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writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_RC);
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writel(0x00000000, ssif_base + UMC_CLKEN_SSIF_DST);
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writel(0x00000001, ssif_base + UMC_CPURST);
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writel(0x00000001, ssif_base + UMC_IDSRST);
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writel(0x00000001, ssif_base + UMC_IXMRST);
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writel(0x00000001, ssif_base + UMC_MDMRST);
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writel(0x00000001, ssif_base + UMC_MDDRST);
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writel(0x00000001, ssif_base + UMC_SIORST);
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writel(0x00000001, ssif_base + UMC_VIORST);
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writel(0x00000001, ssif_base + UMC_FRCRST);
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writel(0x00000001, ssif_base + UMC_RGLRST);
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writel(0x00000001, ssif_base + UMC_AIORST);
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writel(0x00000001, ssif_base + UMC_DMDRST);
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}
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static void umc_dramcont_init(void __iomem *dramcont, void __iomem *ca_base,
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int size, int freq)
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{
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if (freq == 1333) {
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writel(0x45990b11, dramcont + UMC_CMDCTLA);
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writel(0x16958924, dramcont + UMC_CMDCTLB);
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writel(0x5101046A, dramcont + UMC_INITCTLA);
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if (size == 1)
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writel(0x27028B0A, dramcont + UMC_INITCTLB);
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else if (size == 2)
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writel(0x38028B0A, dramcont + UMC_INITCTLB);
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writel(0x000FF0FF, dramcont + UMC_INITCTLC);
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writel(0x00000b51, dramcont + UMC_DRMMR0);
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} else if (freq == 1600) {
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writel(0x36BB0F17, dramcont + UMC_CMDCTLA);
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writel(0x18C6AA24, dramcont + UMC_CMDCTLB);
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writel(0x5101387F, dramcont + UMC_INITCTLA);
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if (size == 1)
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writel(0x2F030D3F, dramcont + UMC_INITCTLB);
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else if (size == 2)
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writel(0x43030D3F, dramcont + UMC_INITCTLB);
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writel(0x00FF00FF, dramcont + UMC_INITCTLC);
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writel(0x00000d71, dramcont + UMC_DRMMR0);
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}
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writel(0x00000006, dramcont + UMC_DRMMR1);
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if (freq == 1333)
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writel(0x00000290, dramcont + UMC_DRMMR2);
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else if (freq == 1600)
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writel(0x00000298, dramcont + UMC_DRMMR2);
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writel(0x00000800, dramcont + UMC_DRMMR3);
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if (freq == 1333) {
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if (size == 1)
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writel(0x00240512, dramcont + UMC_SPCCTLA);
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else if (size == 2)
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writel(0x00350512, dramcont + UMC_SPCCTLA);
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writel(0x00ff0006, dramcont + UMC_SPCCTLB);
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writel(0x000a00ac, dramcont + UMC_RDATACTL_D0);
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} else if (freq == 1600) {
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if (size == 1)
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writel(0x002B0617, dramcont + UMC_SPCCTLA);
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else if (size == 2)
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writel(0x003F0617, dramcont + UMC_SPCCTLA);
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writel(0x00ff0008, dramcont + UMC_SPCCTLB);
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writel(0x000c00ae, dramcont + UMC_RDATACTL_D0);
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}
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writel(0x04060806, dramcont + UMC_WDATACTL_D0);
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writel(0x04a02000, dramcont + UMC_DATASET);
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writel(0x00000000, ca_base + 0x2300);
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writel(0x00400020, dramcont + UMC_DCCGCTL);
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writel(0x00000003, dramcont + 0x7000);
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writel(0x0000000f, dramcont + 0x8000);
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writel(0x000000c3, dramcont + 0x8004);
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writel(0x00000071, dramcont + 0x8008);
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writel(0x0000003b, dramcont + UMC_DICGCTLA);
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writel(0x020a0808, dramcont + UMC_DICGCTLB);
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writel(0x00000004, dramcont + UMC_FLOWCTLG);
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writel(0x80000201, ca_base + 0xc20);
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writel(0x0801e01e, dramcont + UMC_FLOWCTLA);
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writel(0x00200000, dramcont + UMC_FLOWCTLB);
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writel(0x00004444, dramcont + UMC_FLOWCTLC);
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writel(0x200a0a00, dramcont + UMC_SPCSETB);
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writel(0x00000000, dramcont + UMC_SPCSETD);
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writel(0x00000520, dramcont + UMC_DFICUPDCTLA);
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}
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static int umc_init_sub(int freq, int size_ch0, int size_ch1)
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{
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void __iomem *ssif_base = (void __iomem *)UMC_SSIF_BASE;
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void __iomem *ca_base0 = (void __iomem *)UMC_CA_BASE(0);
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void __iomem *ca_base1 = (void __iomem *)UMC_CA_BASE(1);
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void __iomem *dramcont0 = (void __iomem *)UMC_DRAMCONT_BASE(0);
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void __iomem *dramcont1 = (void __iomem *)UMC_DRAMCONT_BASE(1);
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void __iomem *phy0_0 = (void __iomem *)DDRPHY_BASE(0, 0);
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void __iomem *phy1_0 = (void __iomem *)DDRPHY_BASE(1, 0);
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umc_dram_init_start(dramcont0);
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umc_dram_init_start(dramcont1);
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umc_dram_init_poll(dramcont0);
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umc_dram_init_poll(dramcont1);
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writel(0x00000101, dramcont0 + UMC_DIOCTLA);
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ph1_ld4_ddrphy_init(phy0_0, freq, size_ch0);
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ddrphy_prepare_training(phy0_0, 0);
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ddrphy_training(phy0_0);
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writel(0x00000101, dramcont1 + UMC_DIOCTLA);
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ph1_ld4_ddrphy_init(phy1_0, freq, size_ch1);
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ddrphy_prepare_training(phy1_0, 1);
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ddrphy_training(phy1_0);
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umc_dramcont_init(dramcont0, ca_base0, size_ch0, freq);
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umc_dramcont_init(dramcont1, ca_base1, size_ch1, freq);
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umc_start_ssif(ssif_base);
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return 0;
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}
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int ph1_ld4_umc_init(const struct uniphier_board_data *bd)
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{
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if ((bd->dram_ch0_size == SZ_128M || bd->dram_ch0_size == SZ_256M) &&
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(bd->dram_ch1_size == SZ_128M || bd->dram_ch1_size == SZ_256M) &&
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(bd->dram_freq == 1333 || bd->dram_freq == 1600) &&
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bd->dram_ch0_width == 16 && bd->dram_ch1_width == 16) {
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return umc_init_sub(bd->dram_freq,
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bd->dram_ch0_size / SZ_128M,
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bd->dram_ch1_size / SZ_128M);
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} else {
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pr_err("Unsupported DDR configuration\n");
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return -EINVAL;
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}
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}
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